libbase58: Use git URI for submodule to avoid failure on systems without HTTPS support
Merge branch 'libbase58' into bfgminer
Merge branch 'titan' into bfgminer

Conflicts:
	.gitmodules
NEWS: Missing Windows library updates
Bump version to 4.9.0
Merge tag 'bfgminer-4.9.0' into titan

BFGMiner version 4.9.0